If the below email is true, then it proves that +ABL, much like +W, did NOT have a strong, principled position on V2/new mass.
The widow of Hamish Fraser relayed a question to Archbishop Lefebvre, through Fr Michael Crowdy, asking whether she could attend the New Mass because she was unable to get to the traditional Mass. The Archbishop replied to her that she could do so. This would have been in the late 1980's.
But, really, +ABL's views are irrelevant at this point. What matters is NOW. What matters is that +Fellay and his heretical henchmen have infiltrated the neo-sspx and marginalized the principles of +ABL.
Fortunately, +W has stood up to most of +Fellay's tricks, but he still is theologically "on the fence" regarding the new mass. One week, he says the new mass is the poisoned part of an apple; the next week, it is good because of a eucharistic miracle. Theologially, the new 'mass' is contrary to the infallible Trent, therefore it's anathema. But, even after 50 years of it's 'fruits', many still wish to make excuses for it. It's baffling.